A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 5990-01-280-0321
NSN 6685-01-505-0499
NSN 6130-01-512-9572
NSN 4140-01-270-6246
NSN 5910-01-611-5058
NSN 6150-01-043-7509
NSN 6620-01-105-3264
NSN 5935-01-089-9701
NSN 5998-00-915-5132
NSN 5996-01-602-5655
NSN 6320-00-456-0836
NSN 6620-01-300-6992